11261647912 has 16 divisors (see below), whose sum is σ = 21116715840. Its totient is φ = 5630523696.

The previous prime is 11261647907. The next prime is 11261647921. The reversal of 11261647912 is 21974616211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272913 + ... + 311455.

It is an arithmetic number, because the mean of its divisors is an integer number (1319794740).

Almost surely, 2^11261647912 is an apocalyptic number.

It is an amenable number.

11261647912 is a deficient number, since it is larger than the sum of its proper divisors (9855067928).

11261647912 is a wasteful number, since it uses less digits than its factorization.

11261647912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75072 (or 75068 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The spelling of 11261647912 in words is "eleven billion, two hundred sixty-one million, six hundred forty-seven thousand, nine hundred twelve".